CN101377931A - Data writable address locating methods and optical recording apparatus - Google Patents
Data writable address locating methods and optical recording apparatus Download PDFInfo
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- CN101377931A CN101377931A CNA2008100074777A CN200810007477A CN101377931A CN 101377931 A CN101377931 A CN 101377931A CN A2008100074777 A CNA2008100074777 A CN A2008100074777A CN 200810007477 A CN200810007477 A CN 200810007477A CN 101377931 A CN101377931 A CN 101377931A
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- posting field
- address
- data
- write
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- Optical Recording Or Reproduction (AREA)
Abstract
An optical data recording device is suitable for optical storage medium. An optical read-write head transmits light beam to a recording region of optical storage medium and receives the light beam reflected by the recording region of optical storage medium. A sled mechanism moves the optical pickup unit in a predetermined direction. A processor obtains a boundary between a recorded region and an unrecorded region on the optical storage medium according to the reflected light beam, and obtains a recording address corresponding to the unrecorded region next to the boundary. According to the invention the boundary between the recorded region and the unrecorded region of the optical storage medium can be detected without reading the address information of the optical storage medium, and the speed for detecting the boundary is increased.
Description
Technical field
The present invention can write address locating methods relevant for a kind of data, particularly can write address locating methods and optics burning device relevant for a kind of data of CD-WORM (write-once optical disc) that are applicable to.
Background technology
About the data recording mode of CD-WORM (write-once optical disc), data are usually used in regular turn mode burning from inside to outside.To the CD, must be positioned at the last time last burning position of the recorded information before this burning action at burning data in advance.After being positioned to last time last burning position, optical read/write head moves to the position with address adjacent with the address of last burning position last time, so that data seamless (seamless) are burned onto CD.At this, to be referred to as last time last burning address (MostRecently recorded Address corresponding to the address of last burning position last time, MRA), and will be called follow-up burning address (Next Writable Address with the next address of last burning address last time, NWA), the position with follow-up burning address then is called the burning reference position.Therefore, when wanting any information of burning (arbitrary information), must be positioned to the burning reference position earlier to CD.
About the method for follow-up burning address, many location, prior art is to adopt binary search method (binary search), as shown in Figure 1.At first, specifying start address is address A, is address B (step 101) and specify the end address.In step 101, specified start address can be set at the inner track of CD, and the end address can be set at the outermost track of CD.Next, read the zone (step 102) that corresponds to intermediate address C (=(A+B)/2).Next, judge the zone recorded data (step 103) whether correspond to intermediate address C.If corresponding to the zone of intermediate address C is white space, then address C is replaced address B (step 104), and get back to step 102.If corresponding to the zone of intermediate address C is not white space, representative data does not write this zone as yet, therefore address C is replaced address A (step 105), and gets back to step 102.By this classic method, can after carrying out a plurality of circulations (loop), obtain follow-up burning address.Yet, must just can obtain follow-up burning address through many judgement times, and influence the time that burning efficient can be obtained follow-up burning address.Moreover, because continuous burning address locating methods is detected the data of burning after the prior art according to the address of appointment, pairing corrupted data maybe can't read when the address of appointment, or the address of appointment will cause the program interrupt of follow-up burning address location or the failure of prior art can't detect the time.
United States Patent (USP) numbering US.5,706,261, Udagawa has disclosed a kind of optical disc recording apparatus, when jumping onto the tracks detecting by the resulting reproduction of CD-WORM RF signal with the posting field of detecting CD-WORM and the border of posting field not.Those skilled in that art should know that jumping onto the tracks is to carry out according to detecting tilt error signal (detected tilt error signal).Because the too fast speed of jumping onto the tracks may cause detecting tilt error signal, will be restricted to the speed of jumping onto the tracks like this.Therefore,, cause CD-ROM drive initial orders required time to increase because the problem of the speed of jumping onto the tracks has limited and detected posting field and the not speed on the border of posting field, thereby burning information immediately.
Summary of the invention
In order to solve prior art problems, need provide a kind of and can detect the posting field of CD and the method on the border of posting field not fast so that can faster burning information on CD.
The invention provides the localization method that a kind of data can write the address, be applicable to optical storage media, comprising: along set direction mobile optical read/write head; By the posting field of above-mentioned optical read/write head emission light beam to above-mentioned optical storage media; Reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media; According to judge whether recorded data of above-mentioned posting field by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media; When above-mentioned posting field not during record data, obtain the pairing address of above-mentioned posting field; And write new data to the pairing address of above-mentioned posting field.
In addition, the invention provides the localization method that a kind of data can write the address, be applicable to optical storage media, comprising: along set direction mobile optical read/write head; By the posting field of above-mentioned optical read/write head emission light beam to above-mentioned optical storage media; Reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media; Judge on the above-mentioned posting field of above-mentioned optical storage media and the border between the posting field not according to above-mentioned light beam; Obtain above-mentioned not posting field and the pairing recording address of above-mentioned border position adjacent; And write new data to above-mentioned not posting field according to above-mentioned recording address.
In addition, the invention provides a kind of optical data recording device, be applicable to optical storage media, comprising: optical read/write head, the emission light beam is to the posting field of above-mentioned optical storage media, and reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media; Seek the trailer structure, move above-mentioned optical read/write head along set direction; Processor is judged on the above-mentioned posting field of above-mentioned optical storage media and the border between the posting field not according to above-mentioned light beam, and is obtained above-mentioned not posting field and the pairing recording address of above-mentioned border position adjacent.
According to the present invention, need not read the address information of optical storage media, can detect the posting field of optical storage media and the border between the posting field not, improved the speed on detecting border.
Description of drawings
Fig. 1 shows that traditional data can write the process flow diagram of the localization method of address.
Fig. 2 shows described according to the embodiment of the present invention optical disc recording apparatus.
Fig. 3 shows that described according to the embodiment of the present invention data can write the process flow diagram of the localization method of address.
Embodiment
In the middle of instructions and claims, used some vocabulary to call specific element.Those skilled in the art should understand, and hardware manufacturer may be called same element with different nouns.This specification and claims book is not used as distinguishing the mode of element with the difference of title, but the criterion that is used as distinguishing with the difference of element on function.Be open term mentioned " comprising " in the middle of instructions and claims in the whole text, so should be construed to " comprise but be not limited to ".In addition, " coupling " speech is to comprise any indirect means that are electrically connected that directly reach at this.Therefore, be coupled to second device, then represent first device can directly be electrically connected in second device, or be connected electrically to second device indirectly by other device or connection means if describe first device in the literary composition.
Fig. 2 shows described according to the embodiment of the present invention optical disc recording apparatus.Optical disc recording apparatus 10 comprises disc rotary drive unit 12, disc rotary drive unit 12 has Spindle Motor (spindle motor), optical read/write head (Optical Pickup Unit, OPU) 14, seek trailer structure (sled mechanism) 17, signal sensing device 18, and processor 19.Optical read/write head 14 comprises Optical Transmit Unit 16 (for example laser diode), and the posting field that is used for using laser point light illumination optical Storage Media 15 is with record or playing data for broadcasting, and light receiving unit, is used for receiving by posting field institute beam reflected.Optical storage media 15 can be can single writing optical disk (Compact Disc-Recordable, CD-R), writable digital video disk (Digital Video Disc-Recordable, DVD-R, DVD+R, DVD+RDL, DVD-RDL), Blu-ray Disc (Blu-Ray, BD/HD) or the like.Seek trailer structure 17 with set direction mobile optical read/write head 14.For example, optical read/write head 14 can move to the outside by the inboard of optical storage media 15 with set direction 11.Therefore, optical read/write head 14 receives inboard to the outside institute beam reflected by optical storage media 15 in regular turn.Seek trailer structure 17 and drive optical read/write head 14 according to the rail index of seeking that processor 19 is provided.Moreover, seek trailer structure 17 and can move by step motor (stepping motor).Step motor comprises scrambler, and the displacement of the rotational speed of step motor or optical read/write head 14 can be determined according to the output of scrambler.Use the position of the setting optical read/write head 14 that step motor can be more accurate.Yet the present invention is not limited in step motor, also can use optics motor (photo motor) or device that other those skilled in that art knew.
Beam reflected can comprise radio frequency (Radio Frequency, RF) signal, differential phae detection signal, differential push-pull signal (differential push pull signal), inferior light beam extra (sub-beam addition signal), phase error signal (phase errorsignal) or the swinging signal information such as (wobble signal) of reappearing.The information that comprises above-mentioned signal can be received by signal sensing device 18.Those skilled in that art can know, when optical read/write head 14 is crossed over the posting field of optical storage medias 15 and not during the border between the posting field, significant variation will take place beam reflected.
According to the variation of beam reflected, processor 19 will be perceived optical read/write head 14 and cross over the posting field of optical storage medias 15 and the border between the posting field not.When detecting that optical read/write head 14 is crossed over the posting field of optical storage medias 15 and not during the border between the posting field, processor 19 is obtained and is positioned at not on the posting field and the border position adjacent, and obtains the address of corresponding not posting field according to the swinging signal that signal sensing device 18 is detected.According to embodiment of the present invention, posting field and not the border between the posting field can make up according to information such as above-mentioned reproduction radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal or swinging signal one of them or its and detect, to increase detection rightness.
Fig. 3 shows that described according to the embodiment of the present invention data can write the process flow diagram of the localization method of address.At first, consult Fig. 2, optical storage media 15 is mounted to optical disc recording apparatus 10 (step 301).Next, seek trailer structure 17 with set direction 11 mobile optical read/write heads 14 (step 302).In the process that moves, optical read/write head 14 is launched light beams to the posting field of optical storage media 15, and receives the folded light beam (step 303) that is reflected.
Next, detecting folded light beam and judge whether to detect not posting field (step 304) according to the folded light beam of being detected.Folded light beam can comprise information such as reappearing radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal or swinging signal.The information that comprises above-mentioned signal can be received by signal sensing device 18.As mentioned above, cross over the posting field of optical storage medias 15 and not during the border between the posting field, significant variation will take place beam reflected when optical read/write head 14.Moreover when optical storage media 15 recorded datas, posting field is the inboard that is positioned at optical storage media 15.Therefore, when optical read/write head 14 when set direction 11 moves to the outside by the inboard of optical storage media 15, will detect posting field earlier.When detecting posting field, continue execution in step 302 along set direction 11 mobile optical read/write heads 14.When detecting not posting field, then obtain corresponding to detecting the not recording address (step 305) of the position of posting field according to the swinging signal that receives.Therefore, new data will be burned onto the not posting field (step 306) of the resulting records address that is positioned at optical storage media 15 correspondences.In other embodiments, can between step 305 and 306, increase other optimization searching (fine search) method to obtain more accurate recording address.In addition, optical read/write head 14 also can be moved by the mode of the inboard, lateral of optical storage media 15.
According to the embodiment of the present invention, need not read the address information of optical storage media, can detect the posting field of optical storage media and the border between the posting field not, improve the speed on detecting border.Moreover, owing to need not read the address of optical storage media, can't identification even read address or recorded data, can not have influence on the action on detecting border yet.Moreover, according to the embodiment of the present invention, the border can detect according to reappearing one of them or two such as radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal or swinging signal at least, generally speaking, consider many more signals, will obtain higher detection rightness.
Though the present invention with the better embodiment explanation as above; yet it is not to be used for limiting scope of the present invention; any those skilled in the art; without departing from the spirit and scope of the present invention; any change and the change made; all in protection scope of the present invention, specifically the scope that defines with claim is as the criterion.
Claims (24)
1. data can write the localization method of address, are applicable to optical storage media, comprising:
Along set direction mobile optical read/write head;
By the posting field of above-mentioned optical read/write head emission light beam to above-mentioned optical storage media;
Reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media;
According to judge whether recorded data of above-mentioned posting field by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media;
When above-mentioned posting field not during record data, obtain the pairing address of above-mentioned posting field; And
Write new data to the pairing address of above-mentioned posting field.
2. data as claimed in claim 1 can write the localization method of address, it is characterized in that, above-mentioned optical read/write head is that the above-mentioned set direction along inboard to the outside of above-mentioned optical storage media moves.
3. data as claimed in claim 1 can write the localization method of address, it is characterized in that, above-mentioned optical read/write head is to promote by seeking the trailer structure.
4. data as claimed in claim 3 can write the localization method of address, it is characterized in that, the above-mentioned trailer structure of seeking is to promote above-mentioned optical read/write head according to seeking the rail index.
5. data as claimed in claim 3 can write the localization method of address, it is characterized in that, the above-mentioned trailer structure of seeking is to move by step motor.
6. data as claimed in claim 1 can write the localization method of address, it is characterized in that the above-mentioned light beam that above-mentioned posting field reflected comprises one of them the information of reappearing radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal.
7. data as claimed in claim 6 can write the localization method of address, it is characterized in that, judge above-mentioned posting field whether recorded data be to determine according to the information of above-mentioned reproduction radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal at least one or its combination.
8. data as claimed in claim 7 can write the localization method of address, it is characterized in that, judge above-mentioned posting field whether the step of recorded data do not read the address information of above-mentioned optical storage media.
9. data can write the localization method of address, are applicable to optical storage media, comprising:
Along set direction mobile optical read/write head;
By the posting field of above-mentioned optical read/write head emission light beam to above-mentioned optical storage media;
Reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media;
Judge on the above-mentioned posting field of above-mentioned optical storage media and the border between the posting field not according to above-mentioned light beam;
Obtain above-mentioned not posting field and the pairing recording address of above-mentioned border position adjacent; And
Write new data to above-mentioned not posting field according to above-mentioned recording address.
10. data as claimed in claim 9 can write the localization method of address, it is characterized in that, above-mentioned optical read/write head is that the above-mentioned set direction along inboard to the outside of above-mentioned optical storage media moves.
11. data as claimed in claim 9 can write the localization method of address, it is characterized in that, above-mentioned optical read/write head is to promote by seeking the trailer structure.
12. data as claimed in claim 11 can write the localization method of address, it is characterized in that, the above-mentioned trailer structure of seeking is to promote above-mentioned optical read/write head according to seeking the rail index.
13. data as claimed in claim 11 can write the localization method of address, it is characterized in that, the above-mentioned trailer structure of seeking is to move by step motor.
14. data as claimed in claim 9 can write the localization method of address, it is characterized in that the above-mentioned light beam that above-mentioned posting field reflected comprises one of them the information of reappearing radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal.
15. data as claimed in claim 14 can write the localization method of address, it is characterized in that judge on the above-mentioned posting field of above-mentioned optical storage media and the above-mentioned border between the above-mentioned posting field it is that information according to above-mentioned reproduction radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal at least one or its combination is determined.
16. data as claimed in claim 15 can write address locating methods, it is characterized in that, judge that the step on the above-mentioned posting field of above-mentioned optical storage media and the above-mentioned border between the above-mentioned posting field does not read the address information of above-mentioned optical storage media.
17. an optical data recording device is applicable to optical storage media, comprising:
Optical read/write head, the emission light beam is to the posting field of above-mentioned optical storage media, and reception is by the above-mentioned light beam that above-mentioned posting field reflected of above-mentioned optical storage media;
Seek the trailer structure, move above-mentioned optical read/write head along set direction; And
Processor is judged on above-mentioned posting field of above-mentioned optical storage media and the border between the posting field not according to above-mentioned light beam, and is obtained above-mentioned not posting field and the pairing recording address of above-mentioned border position adjacent.
18. optical data recording device as claimed in claim 17 is characterized in that, above-mentioned optical read/write head is that the above-mentioned set direction along inboard to the outside of above-mentioned optical storage media moves.
19. optical data recording device as claimed in claim 17 is characterized in that, the above-mentioned trailer structure of seeking is to promote above-mentioned optical read/write head according to seeking the rail index.
20. optical data recording device as claimed in claim 17 is characterized in that, the above-mentioned trailer structure of seeking is to move by step motor.
21. optical data recording device as claimed in claim 17, it is characterized in that the above-mentioned light beam that above-mentioned posting field reflected comprises one of them the information of reappearing radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal.
22. optical data recording device as claimed in claim 21, it is characterized in that, more comprise signal sensing device, in order to detect at least one of above-mentioned reproduction radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal.
23. optical data recording device as claimed in claim 21, it is characterized in that judge on the above-mentioned posting field of above-mentioned optical storage media and the above-mentioned border between the above-mentioned posting field it is that information according to above-mentioned reproduction radiofrequency signal, differential phae detection signal, differential push-pull signal, inferior light beam extra, phase error signal and swinging signal at least one or its combination is determined.
24. optical data recording device as claimed in claim 23 is characterized in that, judges that the step on the above-mentioned posting field of above-mentioned optical storage media and the above-mentioned border between the above-mentioned posting field does not read the address information of above-mentioned optical storage media.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/847,563 US20090059740A1 (en) | 2007-08-30 | 2007-08-30 | Writable address locating methods and optical recording apparatus utilizing the same |
| US11/847,563 | 2007-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101377931A true CN101377931A (en) | 2009-03-04 |
Family
ID=40407269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100074777A Pending CN101377931A (en) | 2007-08-30 | 2008-03-11 | Data writable address locating methods and optical recording apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20090059740A1 (en) |
| CN (1) | CN101377931A (en) |
| TW (1) | TW200910339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737659A (en) * | 2011-03-31 | 2012-10-17 | 三洋电机株式会社 | Tracking control device and tracing control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002208148A (en) * | 2001-01-12 | 2002-07-26 | Pioneer Electronic Corp | Boundary position retrieval method of recorded region and unrecorded region of recording disk, and information recording device |
-
2007
- 2007-08-30 US US11/847,563 patent/US20090059740A1/en not_active Abandoned
-
2008
- 2008-03-05 TW TW097107632A patent/TW200910339A/en unknown
- 2008-03-11 CN CNA2008100074777A patent/CN101377931A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102737659A (en) * | 2011-03-31 | 2012-10-17 | 三洋电机株式会社 | Tracking control device and tracing control method |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090059740A1 (en) | 2009-03-05 |
| TW200910339A (en) | 2009-03-01 |
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Open date: 20090304 |